The powerlever and thick film driving circuit of traditional inverter were replaced by IPM to evloution inverter. Some problems in using IPM are proposed and solved.
使用IPM代替传统变频器的功率级和厚膜驱动电路改造变频器，提出了使用智能功率模块应注意的几个问题。
2
The valve is driven directly by a large strake multilayer piezoelectric stack, its displacement actuates the power cascade spool after amplification by a lever mechanism.
该阀采用大行程的压电叠堆作为驱动元件，经杠杆放大后的位移直接驱动功率级滑阀。
3
The power to control information is a major lever in the control of society.